	* {
	  margin: 0;
	  padding: 0;
	}

	html,
	body {
	  width: 100%;
	  height: 1005;
	  font-family: '楷体';
	}

	body {
	  background-color: darkgray;
	}

	div {
	  width: 300px;
	  height: 300px;
	  border-radius: 50%;
	  margin: 50px auto;
	  background-color: red;
	  position: relative;
	  cursor: pointer;
	}

	div img {
	  width: 300px;
	  height: 300px;
	  border-radius: 50%;
	  transition: transform 1s linear;
	}

	div p {
	  width: 260px;
	  height: 260px;
	  border-radius: 50%;
	  border: 20px solid rgba(255, 255, 255, .5);
	  position: absolute;
	  top: 0;
	  left: 0;
	}

	div h1 {
	  width: 300px;
	  height: 300px;
	  border-radius: 50%;
	  background-color: rgba(0, 0, 0, .5);
	  color: white;
	  font-size: 48px;
	  text-align: center;
	  line-height: 300px;
	  position: absolute;
	  top: 0;
	  left: -300px;
	  opacity: 0;
	  transition: left 1s linear;
	}

	div:hover h1 {
	  left: 0;
	  opacity: 1;
	}

	div:hover img {
	  transform: rotate(90deg);
	}